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Letters Paten-t No. 103,407, (lated .Ma-y 24, 1870.'

DEVICE FOR ADJ' USTIN G- CROSS-HEADS OF LOCOMOTIVES.

The Schedule referred to in these Letters Patent` and making part of the same.

To all whom 'it may concern Be itknown that we, JAMESD. ARLEY and RICH- ARD ENGLISH, of Oil Cit-y, in the county of Venango and State of Pennsylvania, have invented an Improvement in Devices for Adjusting the Cross-Heads of Locomotives; and we do hereby declare that Athe following is a full, clear, and exact description thereot", reference being had 'to the accompanying draw- Draai-ng.

Figure l is a perspective view oi' our improved dcvice, showing the yokefor attaching it to the guides, the bars which extend along such guides, and the lever with which to move the cross-head.

Figure 2 is an elevation of a. portion of an engine, showing how our device may he applied thereto:

Corresponding letters referto corresponding -parts in hothot' the'iigures.

rlhis invention relates t0 a device for adjusting or moving the cross-heads of locomotives and other engines; and

It consists of a device to be clamped to the guides, or to the block which holds such guides, and a bar Aor bars, which extend along by the side of the guides, such har or bars being provided with means for holding the lever at different points, so that the crosshea-d may be adjusted in any position throughout the entire range of its movement, as will bc more fully described hereinafter.

It is well known that, when it becomes necessary to disconnect the connecting-rod from the cross-head of an engine, for the purpose of reiitting the brasses or boxes, or for setting ont the packing in the cylinders properly, or for any other purpose, .it is a very ditlicult matter to adjust the crgss-head to the desired position, as there are no meaiisof applying a lever or other means for such a purpose, the usual method being to place blocks of wood between the guides, and then use a short lever for the purpose. But this isa tedious. operation, as blocks of different lengths have toA be provided for every'position in which the cross-head may be placed. Our object in 'the present invention is to provide a cheap and convenient device for this purpose.

'lo enable others skilled in the art to make and use our invention, we will proceed to describe its construction and operation.

ing and to the letters of reference marked thereon.

A refers to a yoke, which maybe of castor wrought metal, and of such dimensions as to enablev it to embrace the guides of the engine upon which it is to be used, its form being clearly shown in tigfl of the drawing.

Upon the upper or horizontal bar of this yokel there is formed a projection, A', to which the bars O C are pivoted. y

B refers toa key, which passes through slots formed in the vertical portions of the yoke A, sothat, when it has been placed upon the guides, as shown in tig. 2, it may bedriven into such slots, and thus, in colisequenc of the tapering form of said key, confine the yoke to the guides at any desired point.

C C refer to two bars of metal, or of any other material, which bars are pivoted to the projection A' upon the yoke A by means of a bolt,-\vhi`ch passes through them, and is secured in position byva nut.

These bars may be ot' any -desired length, and are to be provided with pins or bolts C', which extend through both, and are so arranged, by means of shoulders or a collar placed thereon, as to keep the hars at a proper distance from each other, as shown in fig. 1.

D refers to a lever, which may beused for adjusting the cross-head, by placing it in contact with any one ot' the pins or bolts C', and bringing its lower or inner end in contact with the crossvhead.

Having thus described our invention,

What we claim, and desire to secure by Letters Patent, is-

1. An apparatus for adjusting the cross-heads of steam-engines, constructed substantially as shown and described, and for the purpose set forth.

2. JIhe combination of the within-described crosshead adj nster and the guides for the cross-head of a steam-engine, substantially as and for the purpose specilied.

3. The combination of 'the yoke A, key B, bars C C, and lever D, substantially as and for the purpose set forth.

In testimony whereof we have hereunto subscribed our names to this specification in the presence of two attesting witnesses.

JAMES D. AKLEY. RICHARD ENGLISH.

Witnesses: W. F. GROVES,

J. O. BARTLETT. 

